At the moment, when a participant reopens a survey form he already submitted, all the answers are empty.
If he fills in again the survey form, at the end, when submitting his answers the second time, a warning message displays (do you want to submit again ?)
We consider that this warning is too late in the workflow.

So our request is : when a trial participant has filled in a survey form, if he reopens the same survey form later, this one should display the answers already submitted.